protected virtual void SkeletonDataChange(SkeletonDataChangeEventArgs e)
{
if (SkeletonDataChanged != null)
{
SkeletonDataChanged(this, e);
}
}
// Event Handler for SkeletonFrameReady events
// (A new frame of SkeletonStream data is available)
private void KinectSkeletonFrameReady(object sender, SkeletonFrameReadyEventArgs e)
{
// Initialize/empty the skeletonStreamData array
this.skeletonStreamData = new Skeleton[0];
// Get the current SkeletonFrame and copy out the data
using (SkeletonFrame skeletonFrame = e.OpenSkeletonFrame())
{
if (skeletonFrame != null)
{
try
{
// Get the Skeleton data from the SkeletonFrame
skeletonStreamData = new Skeleton[skeletonFrame.SkeletonArrayLength];
skeletonFrame.CopySkeletonDataTo(skeletonStreamData);
// Dispatch the SkeletonDataChange event
SkeletonDataChangeEventArgs s = new SkeletonDataChangeEventArgs(skeletonStreamData);
SkeletonDataChange(s);
}
catch (NullReferenceException ex)
{
Console.WriteLine(ex.TargetSite + " - " + ex.Message);
}
}
}
// Create the Skeleton image output
using (DrawingContext dc = this.drawingGroup.Open())
{
// Draw a black background the size of our render
dc.DrawRectangle(backgroundBrush, null, new Rect(0, 0, RenderWidth, RenderHeight));
//Draw each Skeleton
if (skeletonStreamData.Length != 0)
{
foreach (Skeleton skeleton in skeletonStreamData)
{
// TO-DO: Render clipped edges
if (skeleton.TrackingState == SkeletonTrackingState.Tracked)
{
DrawSkeletonBonesAndJoints(dc, skeleton.Joints);
}
else if (skeleton.TrackingState == SkeletonTrackingState.PositionOnly)
{
DrawSkeletonPosition(dc, skeleton.Position);
}
}
}
// Prevent any drawing outside the render area
this.drawingGroup.ClipGeometry = new RectangleGeometry(new Rect(0, 0, RenderWidth, RenderHeight));
}
}
// Event handler for changes in Skeleton stream data
// Used as a secondary "update" method for setting the position of kinect-controlled paddles
private void SkeletonDataChanged(object sender, SkeletonDataChangeEventArgs e)
{
// Don't update if the game hasn't started
if (gameThread == null)
return;
// Determine which skeletons are on which side
Skeleton right = null;
Skeleton left = null;
// Loop through all available skeletons
for (int i = 0; i < e.skeletons.Length; i++)
{
// Grab the current skeleton
Skeleton skel = e.skeletons[i];
// If we're tracked figure out what side of the screen we're on
if (skel.TrackingState == SkeletonTrackingState.Tracked)
{
Point position = helper.SkeletonPointToScreen(skel.Joints[JointType.ShoulderCenter].Position);
// If the skeleton is the first on the left side of the screen, it is the left skeleton
if ((position.X > 0 && position.X <= GameCanvas.Width / 2) && left == null)
left = skel;
// If the skeleton is the first on the right side of the screen, it is the right skeleton
else if ((position.X > GameCanvas.Width / 2 && position.X < GameCanvas.Width) && right == null)
right = skel;
}
// If both skeletons have been found, no need to keep looking
if (left != null & right != null)
break;
}
// If the left skeleton wasn't found, hide the marker
if (left == null)
markOne.Opacity = 0;
// If the left skeleton was found, update some values
else
{
// Get the locations of the skeleton's head and hand
Point playerOneHand = helper.SkeletonPointToScreen(left.Joints[playerOneHandedness].Position);
Point playerOneHead = helper.SkeletonPointToScreen(left.Joints[JointType.Head].Position);
// Save the last position of player one's paddle
playerOnePosPast = playerOnePos;
// Update the position of player one's paddle
playerOnePos.Y = playerOneHand.Y - playerOne.Height / 2;
// Show and move the player's marker
markOne.Opacity = 1;
markOnePos.X = playerOneHead.X - markOne.Width / 2;
markOnePos.Y = playerOneHead.Y - markOne.Height / 2;
}
// If the right skeleton wasn't found, hide the marker
if (right == null)
markTwo.Opacity = 0;
// If the right skeleton was found, update some values
else
{
// Get the locations of the skeleton's head and hand
Point playerTwoHand = helper.SkeletonPointToScreen(right.Joints[playerTwoHandedness].Position);
Point playerTwoHead = helper.SkeletonPointToScreen(right.Joints[JointType.Head].Position);
// Save the last position of player two's paddle
playerTwoPosPast = playerTwoPos;
// Update the position of player one's paddle
playerTwoPos.Y = playerTwoHand.Y - playerTwo.Height / 2;
// Show and move the player's marker
markTwo.Opacity = 1;
markTwoPos.X = playerTwoHead.X - markTwo.Width / 2;
markTwoPos.Y = playerTwoHead.Y - markTwo.Height / 2;
}
// Draw the markers separately from the rest of the game
// TO-DO: Move this somewhere better
this.Dispatcher.Invoke((Action)(() =>
{
// Move the markers to their new positions
Canvas.SetLeft(markOne, markOnePos.X);
Canvas.SetTop(markOne, markOnePos.Y);
Canvas.SetLeft(markTwo, markTwoPos.X);
Canvas.SetTop(markTwo, markTwoPos.Y);
}));
}
